[Here are two excellent articles on Software Defined Networks (SDN)
and WiFi 2.0.
As the article on SDN points out, the big advantage of
SDN, whether it is OpenFlow, UCLP or similar technology is that it
empowers customers to create their own network solution. Empowering
users enables innovation and creates new business opportunities.
Empowering carriers, on the other hand, stifles innovation and results
in attempts to extract revenue through monopoly rent e.g UBB. This is
why these two technologies are so important for R&E networks –
because their primary mission should be empowering researchers and
educators to enable new modalities and innovation in delivery of their
primary mission of research and education. R&E networks that act
and look like carriers, are not fulfilling their primary mission, and to
my mind are ultimately doomed.
SDN is so important these days,
because unfortunately most large Internet equipment manufacturers, over
the past few years, have been captured by the large carrier mindset and
are seeing far less innovation in this marketplace. Carrier mindset
capture is not a good thing – we have seen the tragic consequences in
Canada. Most of Canada’s high tech companies like Nortel, RIM,
Alcatel-Lucent (Newbridge), etc are struggling or have gone under
because they pursued this market. While the carrier market is extremely
lucrative, once inside the door, it puts blinders on the companies
serving that market. Nortel is a classic example. Despite being a
multi-billion dollar company it really only had 5 major customers – all
incumbent telcos. The whole organization revolved around satisfying the
needs of these 5 large customers. Despite many failed attempts to make a
right hand turn towards the Internet, the demands of these 5 customers
distorted all other values in the company. A classic example of this
perversion of values is Nortel’s infamous “Web tone” strategy. That one
simple phrase, to my mind, says it all in what is wrong with serving the
carrier market. And despite over 20 years of Internet growth, things
have hardly changed.
RIM now is going down the same path as
Nortel. It too has based its entire business strategy of marketing
through the carriers. Only belatedly it is now attempting to follow
Apple and market directly to end users. But after a decade of working
closely with telcos it is hard to imagine they will be able to change
their corporate culture sufficiently enough and fast enough in order to
survive.
This cozy relationship between equipment manufactures and
carriers in Canada, was largely driven by Canada’s restrictions on
foreign competition in the telecom marketplace. As a consequence of
Canadian legislation restricting foreign carriers, Canadian carriers
have remained the most profitable in virtually all of the OCED
countries. Telecom equipment manufacturers that wanted to grow and
survive in this market therefore had to cozy up to these wealthy
oligopolies. For a while this was a very successful strategy, when the
rest of the world was also dominated by monopoly carriers. But when the
rest of the world open up their markets to competition Canadian
manufacturers failed to adapt because Canadian carriers had to face very
little competition and to this day remain very profitable in comparison
to their international counterparts. It was not only equipment
manufacturers who suffered, but Canada’s academic research community as
well. Because the telcos, and their captive suppliers, were the only
ones who had the funds to support academic research, combined with a big
emphasis by Canadian funding council on industrial partnerships, most
academic research unsurprisingly focused on telecom issues. Canadian
academia largely missed the boat on academic Internet research, and to
this very day still remains a bit player in terms of Internet network
research issues.
This finally brings up the issue of Wifi 2.0. As
the article below states, Wifi 2.0 and Next Gen Wifi is clearly focused
on the carrier market and the Hotspot operators are being largely
ignored in these developments. The R&E network community is
demonstrating there is an alternate architecture for this market that
empowers end users. The SURFnet WifI/LTE/Eduroam pilot is a good
example. Other NRENs such as NORDunet, AARnet and JANET are also doing
some interesting work in this space. R&E networks I think have the
opportunity to once again demonstrate, as they have done with the
development of the original Internet, the web, customer owned fiber, etc
that network strategies that empower users such as SDN and enterprise
centric WiFi are ultimately the ones that enable innovation and create
new market opportunities.
For those who will be attending Internet
2 Joint Tech’s in Baton Rouge, I will be elaborating more on this theme
in my keynote talk. – BSA]
Hotspot 2.0 and the Next Generation Hotspot
——————————————-
Hotspot
2.0 and the Next Generation Hotspot initiatives are possibly the most
exciting areas of wireless progress occurring in 2012. For starters,
these developments have a worldwide scope of influence. The technologies
that come to market as a result of these programs will directly affect a
large portion of the world’s population. If brought to market with
extensibility, they could revolutionize the hotspot ease-of-use and
security landscapes. These programs deserve the spotlight.
The Initiatives
Hotspot
2.0 and Next Generation Hotspot (NGH) are highly complementary
initiatives, but they are different in scope. Hotspot 2.0 is the Wi-Fi
Alliance’s certification program that will include a technical
specification defining the Hotspot 2.0 technology. Following the Wi-Fi
Alliance’s core purpose, Hotspot 2.0 will also be a device
certification, based on product interoperability testing, that allows
vendors to implement the protocols in a common way.
Hotspot 2.0 is designed for Wi-Fi clients and infrastructure devices to support seamless connectivity to Wi-Fi networks.
[…]
Unfortunately,
the Hotspot 2.0 program is still largely focused around telecom
carriers and mobile network operators instead of public hotspot
operators, which is where we need change. Hotspot 2.0 should pave the
way for this change over time, but it is less of a focus in the
short-term future.
How does Openflow and SDN help Virtualization/Cloud
—————————————————————–
http://sunaytripathi.wordpress.com/2011/12/21/how-does-openflow-and-sdn-help-virtualizationcloud/
Introduction to Software Defined Networking and OpenFlow
Often
time I hear the term Openflow and Software Defined Networking
Networking used in many different context which range from solving
something simple and useful to literally solving the world hunger
problem (or fixing the world economy for that matter).
[…]
Openflow
creates a standard around how the management interface or Controller
talks to the equipment so the equipment vendors can design their
equipment without worrying about the management piece and someone else
can create a management piece knowing well that it will manage any
equipment that support Openflow. So people who understand standards ask
whats the big deal? I still can’t do more than what the equipment is
designed to do!! And that is the holy grail around any standard. By
creating the standard, you are separating the guys who make equipment to
focus on their expertise and guys doing management to make the
controllers better. This is in no way different than how computers work
today. Intel/AMD creates the key chips, vendors like Dell, HP etc.
create the servers and Linux community (or BSD, OpenSolaris, etc)
creates the OS and it all works together offering a better solution. It
achieves one more thing – it drives the H/W cost lower and creates more
competition while allowing a end user to pick the best H/W (from their
point of view) and the best controller based on features, reliability,
etc. There is no monopoly, plenty of choices and its all great for end
user.
Specially in the networking space where innovation was
lacking for a while and few companies were used to huge margins because
users had no choice. One trend that is driving the fire behind SDN is
virtualization. Both Server and storage side (H/W and OS) have made good
progress on this front but Network is far behind. By opening up the
space, SDN is allowing people like me (who are OS and Distributed
Systems people) to step into this world and drive the same innovation on
network side. So Openflow/SDN are great standards for the end user and
people who understand it see the power behind it.
——
R&E Network and Green Internet Consultant.
email: Bill.St.Arnaud@gmail.com
twitter: BillStArnaud
blog: http://billstarnaud.blogspot.com/
skype: Pocketpro